Circular piano



FIG. 1 is a perspective view of a circular piano showing our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a side view thereof; and,

FIG. 5 is a cross-sectional view thereof along line 5-5 of FIGS. 2 and 3.

The broken lines showing an example outer casing in FIGS. 1-5 are for the purpose of illustrating an environmental structure of circular piano and form no part of the claimed design. 

CLAIM The ornamental design for a circular piano, as shown and described. 